This is the controversial moment when Valentino Rossi crashed and took out 2011 MotoGP World Championship leader Casey Stoner during Sunday's Spanish Grand Prix at Jerez (see below for full sequence).
The incident occurred when Rossi tried to overtake Stoner for second place at turn one on lap 8 of the wet race.
The Italian, who had qualified just twelfth for Ducati, came from a long way back in the braking area, but looked like he might just make it work - until his front-wheel folded at the apex.
Stoner was on the outside of the Italian with nowhere to go and Rossi's fallen bike wiped out the Australian's front wheel, sending them both sliding off.
Rossi rejoined to finish fifth in a race that saw eight riders crash, while Stoner was forced to retire.
Rossi later apologised to Stoner, who won from pole at round one in Qatar.
Stoner, although smiling and accepting Rossi's handshake, said “Your ambition outweighs your talent” during the brief exchange, in which he also asked about Rossi's shoulder.